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The Great American H |
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| While there is much debate over what to do about healthcare in the United States, few disagree that the system has to change. Since 1990, the annual cost of medical care has skyrocketed from $665 billion to almost $2 trillion. |
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Mending a Broken Hea |
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| Worldwide, about 23 million people have heart attacks each year. Half of them die within five years. In the United States alone, heart failure costs $40 billion a year. |
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臾몄젣�빐寃곕젰 �듃�젅�씠�떇 |
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| 저자 | �굹�씪�씠 �븞(�뿭�옄: 源��쁺泥�) |
| 출판사 | �씪鍮� |
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Real vs. Cyber Becom |
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| Amazon has revolutionized the way people buy books, Google has transformed the way people search for information, and eBay has changed the way people buy and sell items that used to be sold at yard sales. |
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Science Explores the |
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| Happy employees stay with their employers longer, and generally are more productive than unhappy employees. Happy customers stick with their suppliers longer, and typically buy more. |
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